ANN ARBOR - No criminal charges will be filed in connection to an evidence issue at the Ingham County Sheriff's Office that impacted more than 1,700 cases.

The Michigan State Police investigation was reviewed by the Washtenaw County Prosecuting Attorney's Office, which informed Ingham County Sheriff Scott Wriggelsworth on Monday that no charges will be filed.

"I’m relieved that the Washtenaw County prosecutor decided there was nothing criminal in this report," he told the State Journal.

Wriggelsworth said new policies and routine evidence audits have been put in place and that he's "extremely pleased" with the evidence room now.

No current employees will be disciplined in connection the issue, the sheriff said. He added that the issue persisted for so many years "it would be almost impossible" to discipline one or a few people.

Steve Hiller, an assistant Washtenaw County prosecutor, said his office's explanation for denying charges is included in a memo, which he declined to release to the State Journal. The State Journal has submitted a public records request for the document. Hiller declined to comment further on the reasons for the denial, but said no specific charges were requested by State Police.

Washtenaw County prosecutors reviewed the case because the Ingham County Prosecuting Attorney's Office recused itself.

Wriggelsworth was elected after the evidence issue was disclosed. He had been at the East Lansing Police Department and was elected in November to replace his father, Gene Wriggelsworth.